a[href$="&u=2"] {
-webkit-animation: rainbow 4s infinite;
animation: rainbow 1s infinite;
}
@-webkit-keyframes rainbow {
0% { color: #F00 }
17% { color: #FF0 }
33% { color: #0F0 }
50% { color: #0FF }
67% { color: #00F }
84% { color: #F0F }
100% { color: #F00 }
}
@-moz-keyframes rainbow {
0% { color: #F00 }
17% { color: #FF0 }
33% { color: #0F0 }
50% { color: #0FF }
67% { color: #00F }
84% { color: #F0F }
100% { color: #F00 }
}